what was the successrate of mediadefenders
Well this is an example
off course there are many other download possbilities that are not mentioned
but in general they should make 3 out of 4 downloads a failure.
For P2P systems it is clear that they must include partial testing during the download for their users before you continue. Because if people download that much films as published in reports lately, than 3 messed up downloads out of 4 would make you flee away.